To have R chunk in line with text using knitr

Question

How to have R code (R chunk) inline with my text?

Example:

Please install the package by using install.packages("ISwR")

whereby, install.packages("ISwR") is automatically highlighted as R chunk using knitr? In other words, I would like to have R code at the same line with my text.

Answer 1

Following a suggestion from Yihui,

\documentclass{article} 
<<setup, include=FALSE>>= 
knit_hooks$set(inline = function(x) { 
  if (is.numeric(x)) return(knitr:::format_sci(x, 'latex')) 
  knitr:::hi_latex(x) 
}) 
@ 
\begin{document} 

Please install the package by using \Sexpr{'install.packages("ISwR")'}. 

\end{document} 

Answer 2

You can use the 3 backticks ``` if you want the encapsulated code NOT to be executed inline . E.g.

There were ```nrow(cars)``` cars studied